Working lamp



FIG. 1 is a front view showing my new design;

FIG. 2 is a left view thereof;

FIG. 3 is a right elevational view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a perspective view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom thereof; and,

FIG. 8 is a perspective view of the working lamp in use. 

CLAIM The ornamental design for a working lamp, as shown and described. 